diff --git a/README.md b/README.md
index e122c523032db392f7cc58c708807ac8e2caa3be..98125068ac67382dfb350de7045d9683a4b475b6 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
 * [About the Project](#about-the-project)
   * [Built with](#built-with)
 * [Usage](#usage)
-  * [Validity ranges](#validity)
+  * [Validity ranges](#validity-ranges)
 * [License](#license)
 * [Contact](#contact)
 * [Acknowledgements](#acknowledgements)